US1045844A - Elevator. - Google Patents

Description

, e. HILLMAN.

ELEVATOR,

APPLICATION FILED DEC. 22. 1909.

ULQ.

Patented Dec.3,1912.

6 SHEETSSHEET 1.

H. G.HILLMAN.

ELEVATOR.

' nrmon mn FILED-D3012, 1909.

Patented. Dec. 3, 1912.

H. G. HILLMANQ ELEVATOR. APPLICATION FILED DBO. 22. 1909.

"Patented 1)ec.3,1912.v

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= msrnmllamimlc H. G. HILLMAN.

ELEVATOR.

APPLICATION FILED DEC. 22. 1909.

fratented De0.3,1912.

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H. G. HI LLMAN.

ELEVATOR. APPLICATION 11.21) DEC. 22, 1909.

Patented Dec. 3, 1912.

51 9i 1211 cases:

mrzmunmunulmnc Hunter a. HILLMAN, or MORRIS PARK, NEW roRm AssreNon r0 JOHN on NEW YORK, N..Y..

sra'rns' Parana orrrcn;

r. CLARKE,

ELEVATdR.

Specification of Letters Patent.

Application filed December 22, 1909. Serial No. 534,425.

To all whwn'. 2''. may concern..-

Be it known that I, I'IENRY G. HILL'MAN, a citizen of the United States, and a resident of Morris Park, Queens county, Island, State of New York,'have invented new and useful Improvements in Elevators, of which the following is a specification.

My invention relates to elevators and more particularly to automatic safety appliances therefor. I

One of the objects of my invention is to provide neahs-whereby the elevator car cannot move away fromany landing due to the careless or accidental operation of the operators cont-roller as long as the door at that landing remains open, and whereby in the case of a hydraulic elevator should the car start from a landing due to leakage while the controlleris atits off or neutral position the car will be automatically returned to the landing and will be prevented from moving but a short distance therefrom before such, return movement.

' Another object of my invention is to, provide means for automatically latching the door at any landing and for holding the door latched until the car arrives in its proper position at the landing and the "controller handle moved to the oif or neutral position, said means including a novel arrangement of circuits for controlling the.

latches.'

My invention is especially useful in cases where the operator is frequently obliged to leave his car, as where a watchman inspecting a building leaves his car standing at each landing while he makes his rounds,

during'which time the car either due to. 801116 movement of the controller handle or due to leakage may move away from the landing. In such cases with my invention it is impossible for the car to leave thembeing equipped, with one feature of my invention. Fig. 2 is a modification of the same showing additional features of the invention used in connection therewith. Fig.

- 3 shows one arrangement for applying my Long a plan view looking up from beneaththe car;

of a modification of the apparatusshownin Fig. 4:. Flg. 9 is a sectional viewof the same taken on line X X. Fig. 10 is a View of the same taken on line Z Z. Figs. 11, 12,-.

ratenteaneae, 1912.

13 and 14 are details of parts of the apparatus shown inFig. 2, and Fig. 15 shows one modification of a door latch.

Referring to the drawings, Fig. 1; 1,2, 3 and 4: are landings in the path of travel of the car each of which is provided with'a door 5 which controls a contact 6 which .is held-open, when its door is closed but is permitted to be closed as soon as its door is opened. The contacts 6 are placed in multlple across a source of'power 7, the circuits from the contacts being as follows: from battery 7 through wire 8 through the cross wires and respective contacts in multiple to wire 9, thence through" wire 10, cutout 11, located in the car at landing 2, automatic safety appliance l2 and wire 13 back to the battery. As hereinafter explained, the automatic safety device 12 will be energized whenever .any of the contacts 6 are closed, the energization of which will prevent the car from leaving the vicinity of the landing.

.In Fig. 2 the automatic safety appliance is shown as located at the top of the elevator well and each 'of the doors 5 is shown as equipped with an automatic latch let in ad- 'dition to tl'le'contacts 6 which latch can only be operated by the energizat-ion of a magnet 15 which is energized'when the car reaches its proper-position at the landing, The circuit shown in Fig. 2 for controlling the automatic safety appliance is as follows: from battery 7 through theactuating nzagnet of the'safetyappliance 12, Wire 8, through the contacts 6v at each landing in multiple to wire 9- thence through wire .10, cut-out 11 in the car at landing 2 and wire 13 back to the battery.-- The circuit-controlling-the door latches may be tracedas follows; .ff-ombattery 7, through wire 18', contact19 controlled by the automatic :safety. appliance,-

wire 20, movable contact 21*and stationary contact 16 at landing 2, through magnet 15 to a movable contact and stationary contact 1T- thence through wire-'23 and wire 13 back to the battery.

.-It will be seen from the above traced circuits that'the automatic safety appliance-for preventing the car from moving away from the landingwillbe energized when anyof the contacts 6 are closed by 'the opening of a. door atanylanding, and also that none of the doors can be opened except by the energization of its magnet 15 dueto the contacts 21, carried by the car registering with the stationary contacts l6, l7 at each landing. As hereinafter explained, partof the automatic safetyappliance is movable with the .controller handle and the contact 19 'in the circuit ofthe door latch magnets is so arranged upon this movable part that said circuit cannot be closed unless the controller is in its off or neutral position.

In Fig. 3 I ha ve'shown one arrangemen of connecting the automatic safety applianc'e Withthe controller handle. The automatic safety appliance is shown in this modification as mounted at the top of the elevator well and as being. geared to a part of the motive mechanism 35 by means of gears '36, while. the movable part of said safety appliance is connected by suitable cables 33, 34 to a rock arm 30 secured,- as shown, at the bottom ofthe well and upon which is mounted two'sheaves 31, 32, over whichpass cables 28, 29--connected at one end to the car and at their' 'other ends to the controller handle 26 by means of the bar 27. By this arrangement of the cables, whenever the part 24 of the automatic safety appliance is moved it will cause thearm 30 to rock from its horizontal position thus throwing the controller handle-in one position or the other according to the direction of movement of the part 24;. t

' The construction of one form 'of the automaticsa ty appliance is shown in Figs. 4-, 6 and 7 in which 37 is a frame mounted atthe top of the elevator well on which is journaled a threaded shaft which is geared to a suitable part of the motive mechanism 35 sheaves 41 41 over whichflpass the cables 33,. 3dwhich are connected to the movable i threads 46 upon the shaft 38.

part Q-lof the safety appliance, which, part is. varranged to slide longitudinally upon 5 Upon the movable cross rods 42 and. 43' part 24: is mountedafhreaded member 1L5 in. the form. ofajhalf nut for engaging the The threaded member dais -arranged to be moved back and forth; toward and away from. the threaded shaft by means of a toggle 53,

which is pivoted at -17 to the frame 2-12. and

at 48 to the threaded half nut 45. The rod 49.

as shown in Fig. 6, provided with a spring 52 which normally holds the half nut 45 away from the threaded shaft. This toggle movable member 2i to thrown the toggle for causing the engagement of said threaded members when the magnet- 50 is energized clue to the opening of any one of the doors.

iHounted upon the frame 3? are contacts 51 which are arranged to be engaged by the contact 19.carried by movable member it only when the controller is in its off or neutral position, which contacts as hereinafter mentioned are included in the circuit tothe 'door latch magnets 15 so that no door can be unlatched except when the controller handle is at the oif position and the car in its proper position at the landing. I

\Vith the apparatus thus far described and shown in Figs. l, 5, (3 and T .assuining thatfthe car is at landing '2, as shown 'in Fig. 2, with the door open. magnet 50 will be energized through the circuit previously traced to throw the toggle 5 3 against the force of spring 52 causing tire ei'igagementof the threaded members and 45 thus locking the movable member and the centroller handle connected thereto with the threaded shaft 38 so that it will be impossible to move the controller handle from its off or neutral position. are in the position shown in Fig.3, the car should start ofi' due to leakage of its valves, the threaded member 38 will be driven from the motive power mechanism towhich t is geared, in a direction to cause the nnJvable member 24 and the rest of the controller mechanism connected thereto to be moved in a direction to return the car to the landing. and should the leakage keep up the coir trcller ha 'lle will be automaticallymoved back and iorth, thus keeping the car in the vicinity of the landing.

'hile I have shown the automatic safety appliance with the form of invention tilllS far described. as located at the top of the elevator well and .as being driven from a part of the motive power by means of a chain and sprocket wheels, it obvious that the automatic safety appliance may be located at any suitable point andmay be operated'in any manner desired froni'any suitable part of the motive mechanism.

In Figs. 8. 9 and 10 I have shown the automatic safety appliance as secured'beiieath the floor of the car and-dilferingin some respects from the construction previously shown and described. M'ountedba vneath the floor of the car C is a shaft 38'- I having threads 46, and upon this shaft is: secured a grooved wheel 54.; Beneath' the floor and adjacent to the shaft 38 is also mounted a stub-shaft 55, mounted foramovement toward and away from shaft 38'and lf whilcthe parts and is held. with sufiicient pressure upon a stationarycable 59 to cause the rotation of wheelo twhen the car is in 1notion. A

track-way "60 is secured'beneath the floor 'of' f the car upon which is arranged a member 61.

preferably having'a dove-tailed connection with the trackway and having a groove on} its lower'side in which moves a dovetailed projection from the-movable part- 21 of :the controller mechanism. A half-nut 45'. ,is secured'to the movable member 21 and is provided with, threads for engaging the threads 46' 'o'n the Sht1fl3'38'; The grooved member 61 carrying the'movable member 24! andhalf-nut 45 is arranged to be moved back and forth toward and awayfronrthethreads'on S ae 3s bv'meanfs of 'a'toggl-c operatedfthrough-"rod 49. by means of a magnet .'50'-' which'isxcontrolled as heretoi {fore explainedin connection with the preyiouslydescribedapparatus. The toggle in this case-as in zthe former is held broken by means of .a' spring 52', and the toggle is s'traightened whenever-z one of the doors are -opened and the magnet '50 energized, for

the purposeofcausing-the engagement of the threaded members," as heretofore ex-'- pl ained.. The-part 2 'c-arrying-the' halfr ut 45 fi's arranged to travel back and forth in the groove of member 61 "whenever the halfjnut-lengages' the threads 46': and; the controller handle 26' is operated from this 5 movable me'mberQ-l' through the rock shaft 62', crank 63 and'rod 64-pivoted to the movable. member 2st at 65. It will'be'observed that with this construction of the automatic safety" appliance the toggle v moves the members are in engagement; whereas in the form shown in Figs. 4, 5. '6 and T. the tog gle operate-s directly upon the half-nut 45. the .toggle andmagnet being mounted directlyupon the member 24' and movable "therewith, when the threaded members are i Figs. 13 and 14: are enlarged views of the stationary contacts 16, .17 mounted at a suitbroughtinto engagement.

is standing at the landing with a door open magnet 50 is energized thus straightening theto-ggle'and causing engagement of the threaded members for locking the controller handle 26? against movement. Should the car start away from the landing the to;

leakage in the valves, the shaft-3S will be rotating in a d rection to mox e-member 24 .soas to throw the controller in .a dircctirn .t o return'the car te t-helanding as previously described in connection with the formshown .f in ltrwill be understoodithat 1n this form as in the -form's'h'own in Fig; l, 'the threaded shaft will be Put. into motion since shaft 38" isdriven by the relative mo- "tion of the car with respect to stationary cable 59.

ously described so that it would be impossible to energize any of the magnets for the .tion, in- ,which*position. the contacts, 51 engage the contact 19. v e -,By arranging-the conductors' lil-and 20 for "energizing-the door latch magnets 15, with the cables leading to the car, I do, away .with the necessity of having to run these conductors along the elevator well or other part of the building. This arrangement adds greatly to the economy bothof installing and. maintaining such apparatus as compared .with' the old manner of wiring these "conductors to the wall of the elevator well and having a contact piece carried. by the car to close the circuit when the car reaches plied to the car, as forlighting purposes it is only necessary for'the purpose of operthe lighting or other cables to the movable '2, the conductor 13 is carried tot'hecar for the purpose of controlling the-other safety ditional conductor 20, and even in cases where it is necessary to-r'un two separate conductors'to the car for the purpose of ,en

be secured to the cable leading 'to the car quired in wiring them to the wall of the well, and when arranged in the form of a cable passingto the car they are much more accessible for the purpose of repairs than when they are secured to the wall of the elevator well.

able point near the landing and in the path of travel'of the car so that they may be en- 1 g" ga'ged- hy theinovable contacts 21, 22 mounted at a suitable point on the car. The stationarycontacts are'mounted insuch a position that they will only be engaged by the movable contacts when the car isin its proper position at the landing.

In Fig. 15 the door latch 14 and operating magnet 15 are shown as mounted on a plate 67 which may be secured at any suitable lpoint near the'door. The latch in this case Figs. 11 and1 2. show enlarged yiews ofthereto. The circuit to thedoor latch mag nets'passes through these contacts as previpurpose of u nlatchin g a door unless the con-' troller. handle is atits oflf-or neutral posi a landing. When current. is alreadysup ating the door latch magnets-to tap otf from contacts 21. and where. as shown in Fig.

l a pliance, it is only'necessary to add one ad- "ergizing thedoor latch magnets, they can with much less expense than would bere-' as soon as thelca'r starts fromthe landing; 10

is shown as engaging a projection 68 carried,

by the door 5.

It will be seen from the above description of my invention that I have provided means for returning the car to the landing should itimproperl t' move away from the same. which means is so arranged as to be controlled or driven from the car-power mechanism soas to move simultaneousl v and in unison 3w ith the car and at a speed proportionate to the travel of the car, which arrangement provides a simple, gradual. positive and accurate control of the car for returning it to the landing'and for ltee 'iing it in the vicinity of the landing during the leakage of the car valves. While I have shown and described withparticularitv the apparatus which seems at present to be the best embodiment of my invention. due to its Having thus described mv in ention what.

I claim and desire to secure l Lette1's'Iatentof the Lmted States g 1. The combination of .an elevator car.

power mechanism therefor, a door. an operi ators controller for governing the'application of power to said car. and means in ludmg a member connected to the controller andv 'a threaded. shaft coi'rperat'ing therewith and.

mechanically driven by the movements of the car for moving the controller in opposite directions determined by the travel ofthecar I and controlled by the door and rendered effective whenever the same is open for preventing the operation of the controller bv the operator.

The combination of an elevator car. power mechanism therefor, a landing and a door at said landing, a circuit controlled by said door,-an operators.controller to'r governing the application of power to said "car, means lncluding a threaded shaft cooperating With the controller mechanism for governing the controller-and driven at a .tspeed proportlonal to thespeed of the car,

and means controlled through said circuit and operated in'response to the opening of thedoor .for effecting the movement of the controller by said. first means-when the car is moved and in a direction to return the car I to the landin The combination of an elevator car, power mechanism. therefor,'a 1and1ng and a door at said landing, a circuit controlled thereby, an operators controller for governthe application of power to said gear,

I a means including a threaded shaft for mot/- ing the controller in a direction determined by the direction of travel of the car and at n ltlkti. prop i'i'iqnal to the speed oi th cal and operated whenever the car is traveling, means including a half nut for connecting said contrt ller and threaded shaft. and means operated through said cult and controlled by the door for causing said controller operating and connecting 1t('l':l to lnove the controller in a direction to return the car to the landing whenever i'l away with the door open.

4. The combination of an eleva or car. power mcchanisn'i therefor. a landing and a door at said landing, a circuit controlled by move! said. door an operators controller for ern'ing the application of power to said means including a threaded 's-hait't' for diii atiug the controller when the dooris open and the car in motion and operated simultaneously with the car as it starts from the landin and in a direction determined bv the direction ot'travel of the C211.E1ll(l incanscoin trolled througli said circuit "when the door iopen and the car in motion for causing -aid controller actuating means: toinove the troller in a direction to return the car to th landing. v

I The combination of an elevator cur ptnrcr int-clnuiisni therefor. a landing and a door at said landin a circuit controlledbvsaid door, an opcratofs controller mechanism for governil'ig the appl' 'a'tit-n of power to the car. a threaded '-.'l1:lii fipcl'ntctl:llllfii taneoasl with the car as it starts. from the landing and at a r 1)t.(,(l ln'o 'iortional tnthe speed of the car, a clutch member comiect'ed to the controller nirchunisn! for en aging said threaded shal'tfand hat-[rdmagnetic means carried by the controller mechanism and comrolled by said door and operated through said circuit when the door is opened for connecting the clutch member with the threaded shaft for prcvei'iting movement of the controller mechanism by the operator.

, 3. The combination of an elevator car. power mechanism moving the car. controller nit chanism for governing the ai'iplication of power to the car. a landing and a circuit controller fronrsaid landing, means including a threaiiled shaft, and also a half nut carried by the controllcimechanism for operating said controller mechanism, said shaft being mechanically tlriven in. response to moveniento'f some part ofeiidjpovver mechanism and in a direction determinedby the di'rcc tion of travel of the car,"and name-m ne'tic 'meius controlled through} said circuit-- t'romthe landing to cz'rus e said controller operating means when the door is open and the car in motion, to move the controller in a (li IQCiZlOIIlO return the car to the land ng.

'7. The combination of an elevator car,

-power mechanism therefor, an e e for-connecting thecontroller mechanism to controller mechanisir. a clutch, comprising-a1 rotatable? tlufeade'd-'f member driven from" some pa rt 16f s'ai' power- Iechanem to -rotate in adirectio: tion of travel or the} can-and a "second member connected to the. cont-roller[mechanism and arranged to (engage. the threads of 'said rotatable-member. and; electroma neticallv operated meansfor moving sa d second member.- into engagement with said threads said-:threa'ded member;

8'. '1 'h'e combination 'of' an elevator car,-,.

power' mechanism therefor. an operators ;'con-trol'l1*, a jtln 'eaded -member driven from sa dpower inec Y hanisnna carriage connected .to'the-coutr oller and movable longitudinally, of"the-.threaded"member, a half nut'movably :mountedori. the carriage and having threads for engaging the threaded member. and elect-romagneticall v controlled "means also mounted on the. carriage fol-throwing the half nut into engagement with the threaded member to cause the carriage and-controller;

to be moved thereby. I 9. The combination of an elevator car,

power mechanism therefor; an operator's controller mechanism,-- a threaded member mechan cally connected to and driven from some part of said power mechanism and operated simultaneously'wlththe car when rotatable thread-ed. member driven from some'part of said power mechanism to rotatein a direction determined by. the directionof travel of the car, and a second member connected. to the controller mechani m and. arranged to engage the threads of said rotatable member, a togglefor moving said sec-, ond member into engagement -with said ."threads, and means for operating said toggle for connecting the controller mechanism with said'threaded member.

"llQThe combination of an elevator car.- power mechanism therefor. an operator's controlleixa clutch .comp1'is ing a rotatable threaded member drivenbv the travel of the car and in a direction'determined by the di'-' rection of travel "of the car, and a second clutch member connected with said con-- troller and movable therewith relative to the threaded member, a toggle ,-and a magnet for operating the same movable with said second clutch member for causing thetengagement determi ed by the direc era-tore: controller, a plural tyof; landings circuit} having contacts. oontrolledby each of -'-sai-d doorsra threaded member mechanicalli connected' 'to and driven from-some part of said power mechanism in a direction determined'by. the direction of travel of the fear, meansconnected with 'thekcon'tro'ller mechaed member to be moved thereby, and electrocon'nected' means a nd threaded member;

power mechanism ther'efo'r, -an operators shaft provide'diwi'th threads; and driven from the power mechanism in.a direc tiondeten mined by the direction of travel of-the'ear; and a threaded half nut connected to the con- 'troller and movable longz'itucflinallv f of;v the said half nut into engagement-with said to be operated by said shaft;

let. The combination of an elevator car; power mechanism there-ton, an operators controller. a threaded memberlocatcd inthe carriage for engaging the threaded member. and 'atoggle for moving thehalf 'nut into engagement with the threaded member be mored therebyv 15. The combination of an elevator car, power mechanism therefor. anper-atone controller. a threaded member lot'ated inthe vicinit v of the'power mechanism and driven. therefrom. a carriage connected to thej'controller and movable longitudinally of" the threaded member. a half nut movably mounted on 'the carriage for engaging the thehalf 'nut into en agement with the threaded member for cails'ingthe carriage and controller to -be-.moved thereby, 1 16'.'The combination of 'an"elevator car power Y mechanism. "therefor --a -n operatdrs said power inechanisnn-a carriagefoonnected to the controller and movable longitudinally ofthe threaded member. a halfz nut-jnoilablj' mounted on the carriage and-.hav'ingthrads for engaging the threaded. member; a pivoted at one: end to'the carriage-and the other end to the nut, and electromagnetic of said cliit ch members for moving; the confor sea-id car and. a door ateach landing, a

nism and cooperatively related to the thread- .magnetic means controlled throughjsaid c'ir cult, and operated when a. door is openednfor cau'sing'the engagement of said controller 13. The. combination of an, elevator car -controller. .a c'lu tch comprising a rotatable threaded member. and a toggle. for moving threaded member for causing tli'econtroller.

vicinity of the power mechanism and driven therefrom. a, carriage connected to' the con troller and" movable longitudinally of the threaded meinl'icr. a half nut mounted onthe.

threaded member," anda' togglefor moving.

controller, at-hreaded memberdriven from agle at.

means atorthrowing the toggletogengage 'POWr mechanism. for moving thelcar, an opa too for causing the carriage and controller to moved thereby.

said half nut with the threaded member for calls ingthe carriage and controller to be 17. The combination of an elevator car, means for driving the same, an operators 1 controller, a frame inountedin the vicinity 'i engagement with the threaded member for causing tliecarriageand controller to be I moved thereby.

'18, The combination of an elevator car,

power mechanism therefor, a landing and a doorat said landing having an electromagnetically controlled latch and a circuit controlling the same, an operat-ors controller, a frame mounted in the vicinity of said power mechanism, athreaded shaft mounted J onsaid frame and driven from said power Mechanism, a carriage connected to the. con- Weller and also mounted on said frame and movable longitudinally of said shaft, a

$9 threaded half nut movably mounted on sail carrlagmmeans mounted uponsaid carriage "for moving the half nut into engagement the threaded member for causing the carriage: and controller to be operated thereby, and contacts in said circuit .con-

ii -tilled the carriage to close said circuit when the controller is. in its neutral or off @osition.

landing, a door [at said landing and a latch for said door, electromagnetic means for operating said latch, a source of energy for two subscribing '19. The. combination of an elevator car, a v

said means, and a circuit for energizing said means comprising a contact in'the path of travel of the-car, a contact movable with the car for engaging said'first contact and a connection from said source to the contact .on the car. I 20. The combination of an elevator car, a landing, a door at said landing and a latch for said door, electromagnetic means at the'landing for operating said latch, a source of energy for said electro-magnetic means, a contact at the-landing in the path of travel ofthe car connected with Said means, a contact on the car for engaging said first contact, and connections between said source and the contact on the car..

"21. The combination of an elevator car, power mechanism therefor, anoperators controller,'means driven from said power mechanism and connected to the controller to move the same, a landing anda door at said landing, a latch for said door. electromagnetic means for operating said latch, a source of energy for said electrormagnetic means, and a circuit for controlling said means including a stationary contact, a contact on the carfor engaging the same, a connection from the source to the contact: on the'car, and a'contact in said connection closed by said controller-connected means cuit to unlatch the door until the controller is in its off position.

In'testimony whereof, I have signed my name to this specification, in the presence of witnesses.

HENRY G. HILLMAX.

\Vitnesses: JOHN T. CLARKE, SAMUEL M. Vane, Jr.

for preventing theenergi'zation of the cir

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